Moving from the United Kingdom to France often creates an uncomfortable administrative moment: a letter from the French tax office asks for UK bank statements, details of transfers, or an explanation of money arriving in a British account. The request may arrive after a first French income tax return, after an automatic exchange of information, or while the administration is checking where a person actually lives. It does not, by itself, prove that the recipient has committed tax fraud. It does mean that the evidence now needs to be organised with care.

The correct response depends on the document received, the tax years concerned, the person’s French tax residence, the origin of each credit and the account-reporting position. A request for information is not the same as a formal request for clarification, and neither should be confused with an examen contradictoire de la situation fiscale personnelle (ESFP), the French procedure for checking an individual’s overall personal tax situation. A British account is not automatically French-taxable income, but unexplained credits and an undeclared foreign account can create separate problems.

This guide gives a British reader a practical framework: identify the procedure, preserve the deadline, prepare a bank-transaction schedule, explain the France–UK treaty position, correct omissions where appropriate and challenge an adjustment without letting a procedural deadline expire. It focuses on personal tax, residence and everyday legal life after Brexit. It does not cover buying French property or incorporating a company.

I. What does a French tax request for UK bank statements mean?

A. Is this a request for information, a formal justification request or an ESFP?

The first task is to read the letter as a procedural document rather than as a general invitation to explain your life. At least three situations can look similar to a British recipient.

The least formal is a demande de renseignements, meaning a request for information. The tax office may ask where a payment came from, why a UK account received a transfer, whether an account was jointly held, or whether a document supports a figure in a French return. Such a letter can still lead to a reassessment, but the wording, legal reference and deadline matter. Answer the questions asked, keep a complete copy and avoid volunteering a theory that has not been checked against the underlying records.

The second is a demande d’éclaircissements et de justifications, meaning a formal request for clarification and supporting justification. Article L. 16 of the French livre des procédures fiscales (LPF), the Book of Tax Procedures, allows the administration to ask an income taxpayer for “des éclaircissements”. The same provision deals with explanations about the taxpayer’s situation and assets, including matters connected with income or foreign holdings. The letter should identify the points at issue and give a response period. A vague answer, a partial answer or silence can have consequences that are more serious than the original question.

The third is an examen contradictoire de la situation fiscale personnelle, abbreviated as ESFP. In English, this is an adversarial examination of an individual’s personal tax situation. It is a structured check of whether the declared income is consistent with the person’s assets, cash movements and lifestyle. A request for bank statements can precede or accompany that procedure. It should not be treated as an ordinary customer-service exchange. If the notice is an ESFP notice, or refers to the safeguards attached to that procedure, Article L. 47 LPF requires the administration to give prior notice and to state the years examined. It also expressly refers to “la faculté de se faire assister par un conseil de son choix”, the right to be assisted by a professional adviser of the taxpayer’s choice.

Look for the following indicators in the letter:

• the legal provision cited, especially LPF Articles L. 16, L. 47, L. 57 or a provision concerning foreign accounts;
• the tax years, not merely the date on which the letter was sent;
• the exact documents requested: full statements, selected transactions, account-opening evidence, tax returns, pension records or explanations of transfers;
• the stated deadline and the date from which it runs;
• whether the letter announces a proposed adjustment, or only asks for information before a decision.

This classification prevents two opposite mistakes. Some taxpayers panic and describe every incoming payment as income even though it was a transfer of their own capital. Others assume that an informal-looking request can be ignored. Neither approach is safe. A well-structured response can explain the distinction between a taxable receipt, a movement between the taxpayer’s own accounts and a capital event, while preserving the right to contest a later proposal.

There is also an important distinction between a request for statements and a full examination of those statements. Article L. 10-0 A LPF, in its current framework, allows the administration to examine account statements in situations connected with non-compliance with foreign-account reporting obligations. That provision is not, on its own, a declaration that every line in a statement is taxable income, and the statutory safeguards of the relevant procedure still matter. The question is what the administration is entitled to examine, what it is asking you to establish and what legal basis it gives for its next step.

Do not send passwords, online-banking credentials, security codes or an unrestricted authorisation to access your banking platform. Download the documents from the bank, preserve the original files and retain evidence of the date on which each statement was obtained. If the administration has requested a particular format, follow it where possible; if a document is unavailable, say so and identify the bank or institution from which it can be requested.

Finally, do not assume that the French tax office has no information about a UK account because the account is in Britain. The UK and France participate in automatic exchange of financial-account information. That does not give the administration a complete narrative of every transaction, but it can explain why an account, its balance or investment income has appeared in a French file.

B. Does a British bank account prove UK residence or taxable income?

A UK bank account is evidence of a financial connection with the United Kingdom. It is not conclusive proof that the account holder remained UK tax-resident, and it is not conclusive proof that every credit is income. Residence and taxability are separate questions that must be analysed with the dates and facts of the individual case.

Under Article 4 A of the French Code général des impôts (CGI), the General Tax Code, a person who is domiciled in France is generally taxable there on worldwide income, subject to treaty rules. Article 4 B CGI sets out domestic residence indicators, including the home or main place of stay, professional activity and centre of economic interests. These are factual tests. A person can keep a UK current account, receive a UK pension and use a British card while still being French-resident under the domestic rules. Conversely, a French address on a form does not settle treaty residence without examining the wider circumstances.

The 2008 France–UK double taxation convention contains its own residence tie-breaker. Where a person could be resident in both countries under domestic law, the analysis moves through matters such as a permanent home and the country with which personal and economic relations are closer. A UK bank account may help explain the economic picture, but it does not decide the tie-breaker in isolation. Keep a dated residence file: leases, utility bills, travel records, employment or pension evidence, family arrangements and the location of ongoing economic interests.

The same treaty has an information-exchange provision. Article 27 permits the exchange of information that is “foreseeably relevant” to the administration or enforcement of the taxes covered by the convention, subject to the conditions stated in the treaty. In practical terms, information may move from HMRC to French authorities even when the account itself is not an accusation. The existence of an exchange is a reason to reconcile your records; it is not a substitute for a legal analysis of each credit.

The account-reporting obligation is another separate issue. Article 1649 A CGI requires a person domiciled in France to declare the references of foreign accounts that were opened, held, used or closed during the relevant year. The text uses the phrase “les références des comptes ouverts, détenus, utilisés ou clos à l’étranger”. The obligation concerns the account and its use; it does not turn the closing balance into income. The French tax authority’s Form 3916 is used for the relevant declaration alongside the income tax return, subject to the form’s instructions and exceptions.

The declaration of a foreign account must be distinguished from the taxation of its contents. Consider four different credits in a UK statement:

• a transfer from your own savings account, which may be a movement of capital rather than new income;
• a UK salary or bonus, which requires employment and tax records and may engage treaty allocation rules;
• interest, dividends or investment proceeds, which require the gross amount, payment date and tax treatment to be identified;
• sale proceeds, a loan, a gift, an inheritance or a pension payment, each of which needs its own documentary explanation.

The French administration may begin with a gross credit because that is what appears on the statement. Your response should not simply label it “not taxable”. It should show the origin, the legal category, the date, any associated tax return entry and the documents supporting the classification. If a credit is a transfer of capital, explain the account from which it came and how that capital was originally accumulated. If it is a pension, show the pension provider’s annual statement and the French return treatment. If it is a loan, provide the agreement and evidence of repayment terms rather than relying on a family explanation.

The automatic exchange framework reinforces the need for accuracy. Article 1649 AC CGI requires reporting entities to provide information for automatic exchanges, including information about financial accounts, balances and income and the account holder’s tax residence. HMRC explains on its official automatic exchange of information guidance that financial institutions may ask for tax residence and a tax identification number and may report identifying details, account balances, interest and dividends. A data match can therefore produce an inquiry even where the tax office has not yet established that a particular payment is taxable in France.

The penalty for failing to declare an account is separate again. Article 1736 CGI provides for a fixed penalty framework linked to the foreign-account declaration obligation, with amounts depending on the circumstances and the status of the jurisdiction. The current text includes a 1,500-euro amount per undeclared account in the ordinary case and a higher amount for certain non-cooperative jurisdictions. Read the applicable year and facts before calculating exposure. The account penalty does not automatically prove that all funds in the account were undeclared income.

The case law illustrates why facts and classification matter. In CAA Nantes, 1st chamber, 9 December 2022, no. 21NT00480, the court examined the reality of two numbered online accounts and upheld the relevant penalties after finding that the accounts had “une réalité matérielle”, a material reality. The decision is not a ruling that every UK account is taxable; it shows that an online or numbered account cannot be dismissed as unreal merely because its presentation differs from a traditional branch account. In CAA Paris, 2nd chamber, 9 June 2020, no. 19PA01752, the court dealt with a dispute involving four unreported Luxembourg accounts and the consequences of later regularisation. Again, the useful lesson is evidential: account identity, dates, declarations and the administration’s calculation must be checked separately.

II. How should a British resident answer and challenge the request?

A. What documents and explanations should you send?

Start with a response timetable. Note the date on the letter, the date of receipt, the deadline written in the letter and the provision cited. Article L. 11 LPF contains the general rule that a response period of 30 days applies to requests and notices unless another rule provides otherwise. A request under Article L. 16 may require attention to its own wording. A formal proposed adjustment under Article L. 57 LPF is a different stage: the administration must give reasons for the proposed adjustment so that the taxpayer can make observations. Article R.*57-1 LPF sets out the usual 30-day period for observations and the possibility of an extension when requested in time.

If you need more time, make the request before the deadline, in writing, and explain what is missing. Identify the statements or historic documents that the bank, pension provider or HMRC must retrieve. Keep proof of sending and do not treat an unanswered extension request as an automatic extension unless the administration confirms the position or the relevant rule provides it. If the deadline is close, send a protective response that identifies the documents already enclosed, explains the outstanding items and asks for a reasonable additional period.

Build one schedule for every account. A useful table can contain:

• the institution, sort code or account identifier, currency and account type;
• the legal holder, joint holder, authorised signatory, trustee or beneficial owner, as relevant;
• opening and closing dates and the exact statement period;
• the opening balance, closing balance and total incoming credits for each period;
• each material credit, with date, amount, currency, payer and proposed category;
• the matching document: payslip, pension statement, dividend voucher, completion statement, loan agreement, gift evidence, probate document or transfer statement;
• the French return line or form used, including whether the foreign-account declaration was made.

Do not hide small transactions just because the administration mentioned only large transfers. Instead, use a materiality rule transparently: list every credit if the volume is manageable, or list all credits above a stated threshold and provide a monthly reconciliation for the remainder. The schedule should reconcile to the statement totals. If the bank statement shows pounds sterling and the French return uses euros, record the exchange-rate method and apply it consistently. A spreadsheet is useful, but it should be supported by the original statements and not replace them.

For a British employee or pensioner, gather the UK-side records that explain the entries. These may include HMRC tax calculations, PAYE documents, pension annual statements, P60 or P45 records where relevant, dividend vouchers, investment-platform tax reports and evidence of UK tax withheld. The French office does not need a generic folder of every document ever received; it needs a traceable answer to each question. Label each attachment and refer to it from the transaction schedule.

For a transfer of savings, show the sending account and, if necessary, the earlier evidence of the savings’ origin. For the proceeds of a UK property sale, provide the completion statement, lender redemption statement and bank trail. The purchase process for property is outside this desk’s scope, but sale proceeds can still matter to the explanation of a bank credit. For an inheritance, include the grant or probate equivalent, estate accounts and distribution evidence. For a gift or family loan, do not rely on a casual message: obtain a dated written document and proof of payment. For a pension, separate the pension capital, regular income, lump sum and tax withheld.

Where the administration asks for documents in French, ask whether an English document with a clear summary is acceptable. If a formal translation is required, a traduction assermentée means a translation by a court-recognised sworn translator. Keep the original English document beside the translation. Never edit a statement to remove embarrassing or irrelevant information. You may ask whether genuinely unrelated personal data can be masked, but do not obscure the date, description, payer, amount or running balance needed to understand the account.

The covering letter should be factual and organised. A useful sequence is:

1. identify the letter, tax years and deadline;
2. state whether you were French tax-resident for each year and explain any treaty analysis separately;
3. list each UK account and whether it was declared on Form 3916;
4. explain the account schedule by category rather than by a long narrative;
5. identify documents not yet available and the date on which they have been requested;
6. reserve your position on any legal conclusion that the administration has not yet formally proposed.

Avoid phrases such as “all transfers were non-taxable” unless the schedule demonstrates why. The stronger formulation is more precise: “The £25,000 credit on 14 March was a transfer from the taxpayer’s own savings account, as shown by statements A and B; it was not a payment for services, interest, dividend or pension.” If a point is uncertain, say what is known, what is missing and what will be supplied. Precision is more persuasive than confidence without evidence.

If the request concerns residence, prepare a separate chronology. Record the dates spent in France and the UK, the location of the available home, employment or business activity, spouse or partner and dependent children, healthcare registration, vehicles, memberships and major financial commitments. A French account or a UK account is only one item in that chronology. CAA Paris, 2nd chamber, 20 February 2013, no. 11PA04584 shows how residence disputes can turn on a combination of home, spending and personal circumstances rather than one document. Treat the decision as a fact-sensitive illustration, not as a shortcut to a result.

B. What if an account was omitted or the tax office proposes an adjustment?

An omitted account should be addressed deliberately. First establish the year in which you became French-resident, whether the account was opened, held, used or closed in each relevant year, and whether an exception in the form instructions applies. Then check the income and capital entries separately. A corrective filing may be appropriate, but it should not be filed blindly or backdated without understanding the account history, penalty exposure and interaction with the pending inquiry. The fact that a tax office has asked for statements can affect the strategic value of a spontaneous correction.

The official impots.gouv.fr guidance explains that residents may need to declare foreign bank and similar accounts using the applicable forms and that penalties can apply. Read the French tax authority’s foreign-account questions and answers together with the form instructions. Keep proof of what was filed, for which year and with which return. Do not assume that declaring the account cures a separate omission of interest, dividends, pension income or capital gains.

If the administration sends a proposition de rectification, meaning a proposed adjustment, move from explanation to a structured set of observations. Article L. 57 LPF requires the proposal to be reasoned sufficiently to allow observations or acceptance. Test each proposed amount against five questions:

• Is the taxpayer the person legally connected with the account and the credit?
• Is the relevant tax year correct, including the date of French residence?
• Has the administration confused a transfer of capital with income?
• Has a gross amount been used where only a net amount, taxable fraction or treaty allocation is relevant?
• Has the administration applied the correct exchange rate, category, declaration rule and penalty for that year?

Answer point by point. If the proposal treats every unexplained credit as income, attach the reconciliation and identify the legal and factual reason for each exclusion. If the dispute is about residence, address domestic law and the treaty separately. If the dispute concerns a pension, dividend or investment payment, identify the treaty article or domestic rule that governs its allocation and the evidence supporting the classification. Do not let an argument about an account-reporting penalty obscure an argument about the absence of taxable income; they are separate issues.

Where the administration has failed to address a document, say so expressly and attach it again if necessary. Where the calculation is wrong, provide a replacement calculation that can be audited. Where a fact is genuinely unknown, do not invent it. Ask the institution for confirmation and explain the steps being taken to obtain it.

Silence is especially risky at a formal stage. Article L. 69 LPF provides that a person who does not answer certain Article L. 16 requests can be “taxé d’office à l’impôt sur le revenu”, assessed automatically to income tax. Taxation d’office means that the administration can establish the tax without the ordinary exchange of observations available in the same way. That does not make every assessment correct, but it changes the burden and the route for challenging it. Replying within time is therefore a legal protection, not merely good etiquette.

If an assessment is made through a formal procedure, Article L. 76 LPF deals with notification of the bases or elements used for an official assessment and the procedural consequences. Read the notice carefully, because the remedy and timing depend on the route used. A taxpayer may later need to make a claim under Article L. 190 LPF, which governs claims concerning errors in the tax base or calculation and the exercise of taxpayer rights. A claim is not a substitute for answering an earlier letter or observations deadline.

There are several possible lines of challenge, but they must be tied to evidence:

• the letter uses the wrong procedure or does not identify the years and questions clearly;
• the administration has treated an account balance or internal transfer as income without identifying a taxable event;
• the residence conclusion ignores the treaty tie-breaker or material evidence about the UK and France;
• the account was outside the reporting obligation for the relevant year, or the form exception applies;
• the proposed penalty or tax calculation uses the wrong year, exchange rate, account holder or statutory amount;
• the administration has not considered documents supplied in response to the request.

The objective is not to contest everything automatically. A defensible response may accept one limited correction, dispute an unsupported characterisation of other credits and reserve arguments on penalties. If the amounts are significant, the letter is an ESFP notice, a proposed adjustment has arrived or fraud penalties are mentioned, have the chronology, statements and draft response reviewed before the deadline. A lawyer can also check whether a treaty position, evidential objection or procedural issue should be raised immediately.

The French courts’ decisions on foreign accounts underline the importance of matching the argument to the evidence. The account issues in CAA Nantes, 9 December 2022, no. 21NT00480 concerned the existence and reporting of numbered accounts, while CAA Paris, 9 June 2020, no. 19PA01752 concerned a group of unreported accounts and later regularisation. Neither decision permits a blanket inference that a British account credit is French income. They are reminders that the account, the declaration, the payment and the procedural history must each be proved.

For a British reader, the final practical checklist is short but demanding. Keep the letter and envelope or electronic receipt. Save the original PDF statements. Prepare the account schedule and residence chronology. Obtain HMRC and pension documents. Identify every large credit. Check Form 3916 for each relevant year. Ask for an extension before the deadline if needed. Send a numbered, indexed response by a method that proves delivery. Keep the submitted bundle and a record of any later call. If the administration replies with a proposed adjustment, diary the observations deadline immediately and do not assume that a previous explanatory letter answered the new stage.

Conclusion

A request for UK bank statements after moving to France is a signal to reconstruct the file, not a conclusion that every payment is taxable. The legal answer depends first on the type of procedure, then on French and treaty residence, the foreign-account declaration obligation and the origin of each credit. A clear schedule, original evidence and a line-by-line covering letter usually provide a far stronger foundation than a broad narrative about having paid tax in Britain.

The decisive deadlines must be protected. A formal request under the LPF, an ESFP notice, a proposed adjustment and an official assessment do not have the same safeguards or remedies. If an account was omitted, correct the position only after the years, forms, income and penalty consequences have been checked. If the administration has made an adjustment, separate residence, taxability, calculation and penalty arguments and support each with evidence. The France–UK relationship explains why information can be exchanged; it does not remove the need for a careful, individual analysis.

Need a quick opinion on your case

Telephone consultation within 48 hours with a lawyer from the firm.

We can review the French tax letter, your UK bank-statement schedule and the deadline before you reply.

Call +33 6 46 60 58 22 or use the contact form for the firm.